CN105170069A - Tower-type gas-liquid contact equipment even gas distribution device and application thereof - Google Patents
Tower-type gas-liquid contact equipment even gas distribution device and application thereof Download PDFInfo
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- CN105170069A CN105170069A CN201510649853.2A CN201510649853A CN105170069A CN 105170069 A CN105170069 A CN 105170069A CN 201510649853 A CN201510649853 A CN 201510649853A CN 105170069 A CN105170069 A CN 105170069A
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Abstract
The invention provides a tower-type gas-liquid contact equipment even gas distribution device and an application thereof. The device comprises a cylindrical tower body and two or more coaxial hollow cylinders arranged at the bottom of the tower body, each hollow cylinder takes the central axis of the cylindrical tower body as the axis, the inner diameters and the lengths of the hollow cylinders are not equal, and a gap is reserved between two adjacent hollow cylinders; an inverted conical closed plate is arranged at the bottom of each hollow cylinder, and a fluid-discharge tube is arranged on each closing plate; a gas distribution disk is arranged at the bottom of the cylindrical tower body, openings are formed in the gas distribution disk, and a base body of the gas distribution disk is connected with the upper ends of the hollow cylinders; an air inlet is formed in the lower portion of the cylinder wall of each hollow cylinder. By means of the tower-type gas-liquid contact equipment even gas distribution device, even distribution of bubbles in the cross section of the tower body can be achieved, the diameters of the bubbles are uniform, and the device is simple in structure, easy to process and specially suitable for large-scale gas distribution equipment.
Description
Technical field
The invention belongs to field of chemical engineering, relate to even distribution device of a kind of tower gas-liquid contanct equipment and uses thereof.
Background technology
Chemical reaction process usually relates to tower gas-liquid contanct equipment, needs to realize bubble and is dispersed in liquid phase, and this not only needs air bubbles dispersion in unit height of mass transfer to be uniformly distributed mutually, and needs the diameter of air bubbles dispersion phase homogeneous.
Even gas distribution method and apparatus about gas-particle two-phase reaction more report, patent CN10250867A and CN202621144U all proposes the even distribution device of a kind of solid granular material suspended fluidization reaction, but this distribution device is not suitable for the bubble producing homogeneous diameter in a liquid.
Patent CN102728283A and CN202700473U all proposes the even cloth gas method of a kind of gas-particle two-phase reactor, described method is: on the wallboard of hopper, offer cloth gas port, cloth gas port is elongated openings, can unit height of mass transfer gas pressure distribution is uneven in solving device problem, make solid particle material fluidization in device dispersed, but this device cannot realize air pressure to be in a liquid uniformly distributed, long and narrow cloth gas port perforate easily produces larger-diameter bubble, cannot even gas distribution in a liquid.
Patent CN202289881U discloses a kind of outer membrane pressing filter of even gas distribution in a liquid.In a device, the device of even gas distribution is one group of aeration tube, for the disturbance on membrane filtration processes strengthening membrane surface, cleans the surface of film.But require strict occasion for generation bubble uniformity coefficient, this gas distribution mode is inapplicable.
Patent CN202844893U discloses a kind of Quick uniform distribution device be made up of sand head, main flow of gas pipe and drop-leg.This device effectively improves the distribution density of the bubble within fluid of unit volume, improves the speed of gas liquid reaction, is applied particularly to petroleum industry field, but this gas distribution mode is in use still had problems.Reason is that this equipment is difficult to accomplish that bubble is uniformly distributed on the cross section of reactor differing heights, cannot realize the phase content uniformity of air bubbles dispersion phase in unit height of mass transfer.
Patent CN203484063U discloses a kind of Quick uniform air-spreading disk, and its air-spreading disk is made up of multilayer sand net overlap, and the area of the ventilative part of each layer sand net reduces gradually from top to bottom, and the aperture of sand net is 20 microns.But this device is also only applicable to the petroleum industry of gas-liquid mixed reaction, and cannot obtain the homogeneous air bubbles dispersion phase of diameter.
The difficulty of the even gas distribution of tower gas-liquid contanct equipment is mainly manifested in the complexity difference that zones of different on distribution of gas dish generates bubble, cause the phase content of air bubbles dispersion phase in unit height of mass transfer cannot uniformity, and the diameter difference generating bubble be quite large.Due to the impact of appts wall effect, under same liquid depth, the pressure above distributing disc is uneven, cause under identical admission pressure condition, the closer to the regional area of reactor wall on distributing disc, more easily generate bubble, and away from the more difficult generation bubble of regional area of reactor wall.Strengthen admission pressure or flow, although the regional area away from reactor wall can be made also to produce bubble, but suffered by the region near reactor wall, flowed friction is less, generates bubble diameter excessive, causes the bubble that cannot obtain homogeneous diameter in tower equipment.
Summary of the invention
For the problem that distribution of gas in gas-liquid contanct equipment tower in prior art is uneven, the invention provides the even distribution device of a kind of tower gas-liquid contanct equipment, this device can realize being uniformly distributed of bubble in tower body cross section, and the diameter of bubble is homogeneous.
For reaching this object, the present invention by the following technical solutions:
First aspect, the invention provides the even distribution device of a kind of tower gas-liquid contanct equipment, described device comprises cylindrical-shaped tower and is arranged at more than 2 coaxial hollow cylinders bottom tower body, each hollow cylinder with the central axis of cylindrical-shaped tower for axle, and the internal diameter of each hollow cylinder and length are all unequal, between adjacent two hollow cylinders, leave space; Be provided with back taper shut bottom each hollow cylinder, shut is provided with discharging tube; The bottom of cylindrical-shaped tower is provided with air-spreading disk, and air-spreading disk has perforate, and matrix and the hollow cylinder upper end of air-spreading disk are tightly connected; Air inlet is provided with below the barrel of each hollow cylinder.
Wherein, described " even gas distribution " refers to that the bubble number that in time per unit, the air-spreading disk of per unit area generates on the surface is equal, and the bubble diameter size of each Area generation on air-spreading disk is identical.
Described cylindrical-shaped tower is the cylindrical-shaped tower of tower gas-liquid contanct equipment, and each coaxial hollow cylinder forms version nested against one another, and the number of hollow cylinder is more than 2 or 2, such as 2,3,4,5,6,7 or 8 and more than.
Described shut ensure that between cylinder cavity and each toroidal cavity separate, is not communicated with mutually; Cylinder cavity and each toroidal cavity bottom are arranged the shut of back taper, be conducive to the smooth discharge being leaked into sky intracavity liquid in tower body by circle straight tube duct.
The matrix of described air-spreading disk is the circle flat board with some strength, and the described material preparing base flat has the ability of certain acid-alkali-corrosive-resisting, and the material such as polytetrafluoroethylene (PTFE) or various stainless steels can be selected to prepare.
In the present invention, the internal diameter of described hollow cylinder increases from inside to outside gradually along the radial direction of cylindrical-shaped tower cross section, and the cross section by cylindrical-shaped tower is divided into some donuts.
Preferably, the upper end of described hollow cylinder is all connected with the matrix of air-spreading disk, and the length of hollow cylinder shortens from inside to outside gradually along the radial direction of cylindrical-shaped tower cross section.
Preferably, the number of described hollow cylinder is 2 ~ 100, such as 2,3,5,7,10,13,15,17,20,23,25,27 or 30,50,100 etc., more preferably 3 ~ 30.
In the present invention, be tightly connected with back taper shut bottom each hollow cylinder.
Preferably, center drum cavity is formed between the hollow cylinder that in described hollow cylinder, internal diameter is minimum and the back taper shut bottom it; Other hollow cylinders in hollow cylinder except the minimum hollow cylinder of internal diameter with its bottom back taper shut between form coaxial toroidal cavity.
Preferably, be not communicated with mutually between described center drum cavity and each toroidal cavity.
Preferably, described center drum cavity and each toroidal cavity are communicated with air inlet all separately, by air inlet in each toroidal cavity and the independent air feed of center drum cavity, ensure that the pressure uniform entering the gas of center drum cavity and each separate toroidal cavity is adjustable, by the air pressure in adjustment center drum cavity and each toroidal cavity and charge flow rate, the even gas distribution in tower gas-liquid contanct equipment can be realized.
In the present invention, the bottom level of described cylindrical-shaped tower is provided with air-spreading disk.
Preferably, the thickness of described air-spreading disk is 2 ~ 20mm, such as 2mm, 5mm, 7mm, 10mm, 13mm, 15mm, 17mm or 20mm etc., more preferably 10mm.
Preferably, the diameter of described air-spreading disk is equal with the internal diameter of cylindrical-shaped tower, and air-spreading disk and tower body cylinder inner wall can be made like this to closely cooperate.
Preferably, the gross area of the eyelet of the perforate on described air-spreading disk accounts for 5 ~ 80% of the air-spreading disk matrix gross area, such as 5%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75% or 80% etc., be preferably 10 ~ 30%, more preferably 20%.
Preferably, the aperture of each perforate on described air-spreading disk is 0.1 ~ 5mm, such as 0.1mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm etc., is preferably 1 ~ 4mm, more preferably 2mm.
In the present invention, vertical insertion circle straight tube in the perforate on described air-spreading disk, circle straight tube runs through the matrix of air-spreading disk and is connected with center drum cavity and each toroidal cavity, and by the duct in circle straight tube, gas can enter into liquid by toroidal cavity.
Described round straight tube has the performance of acid and alkali-resistance, and the inwall of its outer wall and air-spreading disk perforate eyelet closely cooperates, and is tightly connected.
Preferably, the upper port of described round straight tube is higher than the upper transverse plane of air-spreading disk.
Preferably, the upper port of described round straight tube is higher than the upper transverse plane 0.1 ~ 20mm of air-spreading disk, and such as 0.1mm, 1mm, 2mm, 3mm, 5mm, 7mm, 10mm, 13mm, 15mm, 17mm or 20mm etc., be preferably 3 ~ 10mm, more preferably 5mm.
Preferably, the outer wall of described round straight tube is closely connected with the eyelet inwall of perforate on air-spreading disk, and namely the external diameter of round straight tube is equal with the aperture of air-spreading disk perforate.
In the present invention, below the barrel of each hollow cylinder, be provided with air inlet, can ensure that the gas pressure entering cylinder cavity and each toroidal cavity is adjustable like this.
Preferably, in described hollow cylinder the air inlet position of internal layer hollow cylinder lower than the air inlet position of its adjacent outward layer hollow cylinder.
Preferably, the air inlet on the barrel of described hollow cylinder is connected with air inlet pipe.
Preferably, described air inlet pipe is provided with gas conditioner.
Preferably, described gas conditioner comprises pressure-regulating valve and flowmeter.
The gas control valve arranged and flowmeter can make to enter the gas pressure of cylinder cavity and each toroidal cavity and flow adjustable separately, ensure that the gas pressure in cylinder cavity and each toroidal cavity mates with fluid pressure suffered above air-spreading disk, be conducive on tower body cross section, generate equally distributed bubble along tower body radial direction; Meanwhile, by the adjustment entering gas flow in cylinder cavity and each toroidal cavity, after can ensureing that gas passes air-spreading disk, the homogeneous bubble of diameter is generated along tower body cross section radial direction.
In the present invention, the endless belt width of described toroidal cavity and the ratio of cylindrical-shaped tower internal diameter are 1:(3 ~ 1000), such as 1:3,1:10,1:30,1:50,1:70,1:100,1:300,1:500,1:700 or 1:1000 etc., be preferably 1:(10 ~ 100), more preferably 1:10.
Preferably, the diameter of described center drum cavity and the ratio of cylindrical-shaped tower internal diameter are 1:(3 ~ 1000), such as 1:3,1:10,1:30,1:50,1:70,1:100,1:300,1:500,1:700 or 1:1000 etc., be preferably 1:(10 ~ 100), more preferably 1:10.
The running of the even distribution device of above-mentioned tower gas-liquid contanct equipment is as follows:
Feed liquid is loaded in cylindrical-shaped tower, then by regulating the pressure and the flow that regulate the gas of access to plant with the gas conditioner that cylinder cavity is connected with toroidal cavity, gas can obtain the bubble of diameter stable homogeneous after entering cylindrical-shaped tower by the round straight tube on air-spreading disk.
Second aspect, the invention provides the purposes of the even distribution device of described tower gas-liquid contanct equipment, it is applied in tower gas-liquid contanct equipment.
The third aspect, the invention provides the purposes of the even distribution device of described tower gas-liquid contanct equipment, it is applied to solvent extraction, solvent sublation or solvent floatation field, but its purposes is not limited only to again above-mentioned field, can also be applied to the place of other chemical fields and needs.
Compared with prior art, of the present invention have following beneficial effect:
(1) in the present invention, separate between cylinder cavity and each toroidal cavity, in cylinder cavity and each toroidal cavity, the pressure of gas is independent of each other, and enters the pressure of the gas in cylinder cavity and each toroidal cavity and flow by being arranged on gas control valve in air inlet pipe and flowmeter regulates separately.By the gas pressure in adjustment cylinder cavity and each toroidal cavity and flow, the gas pressure required for the even gas distribution of air-spreading disk perforate can be mated and in the perforate eyelet unit interval, generate the number of bubble.
(2) uniform air distribution of the even distribution device of tower gas-liquid contanct equipment of the present invention is high.Due to annular subregion has been carried out with the form of toroidal cavity in the bottom of tower gas-liquid contanct equipment and air-spreading disk, the percent opening of air-spreading disk and aperture can homogeneous layouts.By adjusting gas pressure in each self-corresponding cylinder cavity of each subregion and each toroidal cavity and flow, the bubble that diameter is identical, quantity is identical is produced after gas can be made to pass the tiny round straight tube of air-spreading disk, the number of bubbles with same diameter can reach more than 90% of total number of bubbles, realizes even gas distribution in tower body.
(3) the even distribution device of tower gas-liquid contanct equipment of the present invention is stable.In the course of work of gas-liquid contanct equipment, be arranged on cylinder cavity below air-spreading disk and each toroidal cavity due to the pressure of internal gas independent and adjustable separately, by regulating the pressure of gas in cylinder cavity and each toroidal cavity, liquid phase above air-spreading disk can be mated and produce the pressure required for bubble, effectively overcome the generation of Biased flow phenomenon in liquid phase, make stable equipment operation.
(4) even distribution device structure of the present invention is simple, easily processes, is specially adapted to large-scale gas distribution equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the even distribution device of tower gas-liquid contanct equipment of the present invention;
Fig. 2 is the sectional view of the even distribution device of described tower gas-liquid contanct equipment along tower body cross section;
Wherein, 1-cylindrical-shaped tower, 2-air-spreading disk, 3-hollow cylinder, 4-discharging tube, 5-gas conditioner, 6-air inlet pipe, 7-toroidal cavity, 8-center drum cavity, 9-shut, 10-circle straight tube, 11-air inlet.
Detailed description of the invention
Be described the even distribution device of tower gas-liquid contanct equipment that the present invention proposes below in conjunction with accompanying drawing, listed embodiment, only for explaining the present invention, does not limit the scope of application of the method that the present invention proposes.
The invention provides the even distribution device of a kind of tower gas-liquid contanct equipment, more than 2 the coaxial hollow cylinders 3 that described device comprises cylindrical-shaped tower 1 and is arranged at bottom tower body, each hollow cylinder 3 with the central axis of cylindrical-shaped tower 1 for axle, and the internal diameter of each hollow cylinder 3 and length all unequal, leave space between adjacent two hollow cylinders 3; Be provided with back taper shut 9 bottom each hollow cylinder 3, shut 9 be provided with discharging tube 4; The bottom of cylindrical-shaped tower 1 is provided with air-spreading disk 2, and air-spreading disk 2 has perforate, and matrix and hollow cylinder 3 upper end of air-spreading disk 2 are tightly connected; Air inlet 11 is provided with below the barrel of each hollow cylinder 3.
The internal diameter of described hollow cylinder 3 increases from inside to outside gradually along the radial direction of cylindrical-shaped tower 1 cross section.
The upper end of described hollow cylinder 3 is all connected with the matrix of air-spreading disk, and the length of hollow cylinder 3 shortens from inside to outside gradually along the radial direction of cylindrical-shaped tower 1 cross section.
Be tightly connected with back taper shut 9 bottom each hollow cylinder 3.
Center drum cavity 8 is formed between the hollow cylinder 3 that in described hollow cylinder 3, internal diameter is minimum and the back taper shut 9 bottom it; Other hollow cylinders 3 in hollow cylinder 3 except the minimum hollow cylinder 3 of internal diameter with its bottom back taper shut 9 between form coaxial toroidal cavity 7.
Be not communicated with mutually between described center drum cavity 8 and each toroidal cavity 7.
Described center drum cavity 8 and each toroidal cavity 7 are communicated with air inlet 11 all separately.
The bottom level of described cylindrical-shaped tower 1 is provided with air-spreading disk 2.
The thickness of described air-spreading disk 2 is 2 ~ 20mm.
The diameter of described air-spreading disk 2 is equal with the internal diameter of cylindrical-shaped tower 1.
The aperture of each perforate on described air-spreading disk 2 is 0.1 ~ 5mm.
The gross area of the eyelet of the perforate on described air-spreading disk 2 accounts for 5 ~ 80% of the air-spreading disk 2 matrix gross area.
Vertical insertion circle straight tube in perforate on described air-spreading disk 2, circle straight tube runs through the matrix of air-spreading disk 2 and is connected with center drum cavity 8 and each toroidal cavity 7.
The upper port of described round straight tube is higher than the upper transverse plane of air-spreading disk 2.
The outer wall of described round straight tube is closely connected with the eyelet inwall of perforate on air-spreading disk 2.
The upper port of described round straight tube is higher than the upper transverse plane 0.1 ~ 20mm of air-spreading disk 2.
Air inlet 11 is provided with below the barrel of each hollow cylinder 3;
In described hollow cylinder 3, the air inlet position of internal layer hollow cylinder 3 is lower than the air inlet position of its adjacent outward layer hollow cylinder 3;
Air inlet 11 on the barrel of described hollow cylinder 3 and air inlet pipe phase 6 are communicated with.
Described air inlet pipe 6 is provided with gas conditioner 5.
Described gas conditioner 5 comprises pressure-regulating valve and flowmeter.
The endless belt width of described toroidal cavity 7 and the ratio of cylindrical-shaped tower 1 internal diameter are 1:(3 ~ 1000).
The diameter of described center drum cavity 8 and the ratio of cylindrical-shaped tower 1 internal diameter are 1:(3 ~ 1000).
Embodiment 1:
As shown in Figure 1, the present embodiment is for 3 hollow cylinders, and manufacture the solvent sublation tower of a pilot-scale, cylindrical-shaped tower 1 is of a size of: tower height 3000mm, tower diameter 600mm.At cylindrical-shaped tower 1 lower disposed air-spreading disk 2, air-spreading disk thickness is 10mm, the external diameter of the tiny round straight tube 10 on air-spreading disk 2 is equal with the internal diameter size of air-spreading disk 2 perforate is 1mm, and tiny round straight tube 10 exceeds air-spreading disk plane 5mm, the gross area of the eyelet of perforate accounts for 10% of the air-spreading disk 2 matrix gross area.Bottom cylindrical-shaped tower 1, the below of air-spreading disk 2, to arrange three be axle with tower body central axis, internal diameter and length all not etc., and mutually nested hollow cylinder 3, the diameter of hollow cylinder 3 is respectively 250mm, 450mm and 600mm, and length is respectively 600mm, 450mm and 250mm.The barrel gap that the hollow cylinder 3 that diameter is minimum and back taper shut 9 form center drum cavity 8, three hollow cylinders 3 forms 2 toroidal cavities 7, as shown in Figure 2.Center drum cavity 8 is connected air inlet pipe 6 with toroidal cavity 7 by air inlet 11, air inlet pipe 6 is provided with gas conditioner 5 (it comprises pressure-regulating valve and flowmeter), and at gas conditioner 5 and between center drum cavity 8 and toroidal cavity 7, check valve is installed, with prevent charging process and experiment at the end of liquid phase pour in down a chimney to air inlet pipeline.Under the prerequisite that center drum cavity 8 and toroidal cavity 7 are all ventilated, in solvent sublation tower, load feed liquid, dress tower height degree is 2500mm.Regulate the gas conditioner 5 that the pressure-reducing valve that is connected with toroidal cavity 7 with cylinder cavity 8 and mass flowmenter combine respectively, gas is after the round straight tube 10 on air-spreading disk 2, total bubble number more than 95% of generation can be accounted in the bubble number of tower body cross section acquisition diameter 2mm, and on the cross section of tower body, bubble number is identical.
Embodiment 2:
As shown in Figure 1, the present embodiment, for 3 hollow cylinders, manufactures the solvent sublation tower of a pilot-scale, cylindrical-shaped tower 1 size: tower height 3000mm, tower diameter 600mm.At cylindrical-shaped tower 1 lower disposed air-spreading disk 2, air-spreading disk thickness is 20mm, the external diameter of the tiny round straight tube 10 on air-spreading disk 2 is equal with the internal diameter size of perforate is 1mm, and tiny round straight tube 10 exceeds the plane 5mm of air-spreading disk 2, the gross area of the eyelet of perforate accounts for 20% of the air-spreading disk 2 matrix gross area.Bottom cylindrical-shaped tower 1, the below of air-spreading disk 2, to arrange three be axle with tower body central axis, internal diameter and length all not etc., and mutually nested hollow cylinder 3, the diameter of hollow cylinder 3 is respectively 250mm, 450mm and 600mm, and length is respectively 600mm, 450mm and 250mm.The barrel gap that the hollow cylinder 3 that diameter is minimum and back taper shut 9 form center drum cavity 8, three hollow cylinders 3 forms 2 toroidal cavities 7, as shown in Figure 2.Center drum cavity 8 is connected air inlet pipe 6 with toroidal cavity 7 by air inlet 11, air inlet pipe 6 is provided with gas conditioner 5 (it comprises pressure-regulating valve and flowmeter), and at gas conditioner 5 and between center drum cavity 8 and toroidal cavity 7, check valve is installed, with prevent charging process and experiment at the end of liquid phase pour in down a chimney to air inlet pipeline.Under the prerequisite that center drum cavity 8 and toroidal cavity 7 are all ventilated, in solvent sublation tower, load feed liquid, dress tower height degree is 2500mm.Regulate the gas conditioner 5 that the pressure-reducing valve that is connected with toroidal cavity 7 with center drum cavity 8 and mass flowmenter combine respectively, gas is after the round straight tube 10 on air-spreading disk 2, total bubble number more than 95% of generation can be accounted in the bubble number of tower body cross section acquisition diameter 2mm, and on the cross section of tower body, bubble number is identical.
Embodiment 3:
Except the solvent sublation tower adopting 4 hollow cylinders to manufacture a pilot-scale, air-spreading disk thickness is 2mm, the external diameter of the tiny round straight tube 10 on air-spreading disk 2 is equal with the internal diameter size of perforate is 2mm, and tiny round straight tube 10 exceeds air-spreading disk plane 3mm, the gross area of the eyelet of perforate accounts for outside 30% of the air-spreading disk 2 matrix gross area, other structures are all identical with the solvent sublation tower in embodiment 1, the bubble number that can obtain diameter 3mm by this device on tower body cross section accounts for total bubble number more than 95% of generation, and on the cross section of tower body, bubble number is identical.
Embodiment 4:
Except the solvent sublation tower adopting 2 hollow cylinders to manufacture a pilot-scale, the external diameter of the tiny round straight tube 10 on air-spreading disk 2 is equal with the internal diameter size of perforate is 4mm, and tiny round straight tube 10 exceeds air-spreading disk plane 10mm, the gross area of the eyelet of perforate accounts for outside 5% of the air-spreading disk 2 matrix gross area, other structures are all identical with the solvent sublation tower in embodiment 1, the bubble number that can obtain diameter 6mm by this device on tower body cross section accounts for total bubble number more than 95% of generation, and on the cross section of tower body, bubble number is identical.
Embodiment 5:
Except the solvent sublation tower adopting 30 hollow cylinders to manufacture a pilot-scale, the external diameter of the tiny round straight tube 10 on air-spreading disk 2 is equal with the internal diameter size of perforate is 5mm, and tiny round straight tube 10 exceeds air-spreading disk plane 20mm, the gross area of the eyelet of perforate accounts for outside 80% of the air-spreading disk 2 matrix gross area, other structures are all identical with the solvent sublation tower in embodiment 1, total bubble number more than 95% of generation can be accounted in the bubble number of tower body cross section acquisition diameter 7mm by this device, and on the cross section of tower body, bubble number is identical.
Embodiment 6:
Except the solvent sublation tower adopting 100 hollow cylinders to manufacture a pilot-scale, the external diameter of the tiny round straight tube 10 on air-spreading disk 2 is equal with the internal diameter size of perforate is 0.1mm, and tiny round straight tube 10 exceeds air-spreading disk plane 0.1mm, the gross area of the eyelet of perforate accounts for outside 50% of the air-spreading disk 2 matrix gross area, other structures are all identical with the solvent sublation tower in embodiment 1, total bubble number more than 95% of generation can be accounted in the bubble number of tower body cross section acquisition diameter 2mm by this device, and on the cross section of tower body, bubble number is identical.
In sum, in the present invention, separate between cylinder cavity and each toroidal cavity, in cylinder cavity and each toroidal cavity, the pressure of gas is independent of each other, and enters the pressure of the gas in cylinder cavity and each toroidal cavity and flow by being arranged on gas control valve in air inlet pipe and flowmeter regulates separately.By the gas pressure in adjustment cylinder cavity and each toroidal cavity and flow, the gas pressure required for the even gas distribution of air-spreading disk perforate can be mated and in the perforate eyelet unit interval, generate the number of bubble.
The uniform air distribution of the even distribution device of tower gas-liquid contanct equipment of the present invention is high.Due to annular subregion has been carried out with the form of toroidal cavity in the bottom of tower gas-liquid contanct equipment and air-spreading disk, the percent opening of air-spreading disk and aperture can homogeneous layouts.By adjusting gas pressure in each self-corresponding cylinder cavity of each subregion and each toroidal cavity and flow, the bubble that diameter is identical, quantity is identical is produced after gas can be made to pass the tiny round straight tube of air-spreading disk, the number of bubbles with same diameter can reach more than 90% of total number of bubbles, realizes even gas distribution in tower body.
The even distribution device of tower gas-liquid contanct equipment of the present invention is stable.In the course of work of gas-liquid contanct equipment, be arranged on cylinder cavity below air-spreading disk and each toroidal cavity due to the pressure of internal gas independent and adjustable separately, by regulating the pressure of gas in cylinder cavity and each toroidal cavity, liquid phase above air-spreading disk can be mated and produce the pressure required for bubble, effectively overcome the generation of Biased flow phenomenon in liquid phase, make stable equipment operation.
Even distribution device structure of the present invention is simple, easily processes, is specially adapted to large-scale gas distribution equipment.
Applicant states, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, namely do not mean that the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of auxiliary element, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (9)
1. the even distribution device of tower gas-liquid contanct equipment, it is characterized in that, described device comprises cylindrical-shaped tower (1) and is arranged at more than 2 coaxial hollow cylinders (3) bottom tower body, each hollow cylinder (3) with the central axis of cylindrical-shaped tower (1) for axle, and the internal diameter of each hollow cylinder (3) and length all unequal, leave space between adjacent two hollow cylinders (3); Each hollow cylinder (3) bottom is provided with back taper shut (9), shut (9) is provided with discharging tube (4); The bottom of cylindrical-shaped tower (1) is provided with air-spreading disk (2), and (2) have perforate to air-spreading disk, and matrix and hollow cylinder (3) upper end of air-spreading disk (2) are tightly connected; Air inlet (11) is provided with below the barrel of each hollow cylinder (3).
2. the even distribution device of tower gas-liquid contanct equipment according to claim 1, is characterized in that, the internal diameter of described hollow cylinder (3) increases from inside to outside gradually along the radial direction of cylindrical-shaped tower (1) cross section;
Preferably, the upper end of described hollow cylinder (3) is all connected with the matrix of air-spreading disk (2), and the length of hollow cylinder (3) shortens from inside to outside gradually along the radial direction of cylindrical-shaped tower (1) cross section;
Preferably, the number of described hollow cylinder (3) is 2 ~ 100, more preferably 3 ~ 30.
3. the even distribution device of tower gas-liquid contanct equipment according to claim 1 and 2, is characterized in that, each hollow cylinder (3) bottom is tightly connected with back taper shut (9);
Preferably, center drum cavity (8) is formed between the hollow cylinder (3) that in described hollow cylinder (3), internal diameter is minimum and the back taper shut (9) bottom it; Other hollow cylinders (3) in hollow cylinder (3) except the minimum hollow cylinder (3) of internal diameter with its bottom back taper shut (9) between form coaxial toroidal cavity (7);
Preferably, be not communicated with mutually between described center drum cavity (8) and each toroidal cavity (7);
Preferably, described center drum cavity (8) and each toroidal cavity (7) are communicated with air inlet (11) all separately.
4. the even distribution device of tower gas-liquid contanct equipment according to any one of claim 1-3, is characterized in that, the bottom level of described cylindrical-shaped tower (1) is provided with air-spreading disk (2);
Preferably, the thickness of described air-spreading disk (2) is 2 ~ 20mm, more preferably 10mm;
Preferably, the diameter of described air-spreading disk (2) is equal with the internal diameter of cylindrical-shaped tower (1);
Preferably, the gross area of the eyelet of the perforate on described air-spreading disk (2) accounts for 5 ~ 80% of air-spreading disk (2) the matrix gross area, is preferably 10 ~ 30%, more preferably 20%;
Preferably, the aperture of each perforate on described air-spreading disk (2) is 0.1 ~ 5mm, is preferably 1 ~ 4mm, more preferably 2mm.
5. the even distribution device of tower gas-liquid contanct equipment according to any one of claim 1-4, it is characterized in that, vertical insertion circle straight tube in perforate on described air-spreading disk (2), circle straight tube runs through the matrix of air-spreading disk (2) and is connected with center drum cavity (8) and each toroidal cavity (7);
Preferably, the upper port of described round straight tube is higher than the upper transverse plane of air-spreading disk (2);
Preferably, the upper port of described round straight tube, higher than the upper transverse plane 0.1 ~ 20mm of air-spreading disk (2), is preferably 3 ~ 10mm, more preferably 5mm;
Preferably, the outer wall of described round straight tube is closely connected with the eyelet inwall of the upper perforate of air-spreading disk (2).
6. the even distribution device of tower gas-liquid contanct equipment according to any one of claim 1-5, is characterized in that, is provided with air inlet (11) below the barrel of each hollow cylinder (3);
Preferably, in described hollow cylinder (3) the air inlet position of internal layer hollow cylinder (3) lower than the air inlet position of its adjacent outward layer hollow cylinder (3);
Preferably, the air inlet (11) on the barrel of described hollow cylinder (3) is communicated with air inlet pipe phase (6);
Preferably, described air inlet pipe (6) is provided with gas conditioner (5);
Preferably, described gas conditioner (5) comprises pressure-regulating valve and flowmeter.
7. the even distribution device of tower gas-liquid contanct equipment according to any one of claim 1-6, it is characterized in that, the endless belt width of described toroidal cavity (7) and the ratio of cylindrical-shaped tower (1) internal diameter are 1:(3 ~ 1000), be preferably 1:(10 ~ 100), more preferably 1:10;
Preferably, the diameter of described center drum cavity (8) and the ratio of cylindrical-shaped tower (1) internal diameter are 1:(3 ~ 1000), be preferably 1:(10 ~ 100), more preferably 1:10.
8. the purposes of the even distribution device of tower gas-liquid contanct equipment according to any one of claim 1-7, it is applied in tower gas-liquid contanct equipment.
9. the purposes of the even distribution device of tower gas-liquid contanct equipment according to any one of claim 1-7, it is applied to solvent extraction, solvent sublation or solvent floatation field.
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| CN201510649853.2A CN105170069B (en) | 2015-10-09 | 2015-10-09 | A kind of uniform distribution device of tower gas-liquid contanct equipment and application thereof |
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| CN201510649853.2A CN105170069B (en) | 2015-10-09 | 2015-10-09 | A kind of uniform distribution device of tower gas-liquid contanct equipment and application thereof |
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| CN105170069B CN105170069B (en) | 2018-03-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107828961A (en) * | 2017-11-02 | 2018-03-23 | 中国科学院过程工程研究所 | A kind of extracting process of rare earth element ion and obtained rare-earth enrichment liquid |
| CN108939595A (en) * | 2018-07-18 | 2018-12-07 | 嘉兴学院 | The distribution device in gas-fluid of multipath diffusion |
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| US4140178A (en) * | 1973-09-20 | 1979-02-20 | Atlantic Richfield Company | Liquid vapor distribution apparatus |
| SU1599137A1 (en) * | 1988-07-14 | 1990-10-15 | Комплексный научно-исследовательский и проектно-конструкторский институт обогащения твердых горючих ископаемых | Air separator |
| CN2328420Y (en) * | 1998-03-09 | 1999-07-14 | 中国成达化学工程公司 | Horizontal reaction synthesizing tower |
| CN101623615A (en) * | 2009-08-11 | 2010-01-13 | 赛鼎工程有限公司 | Sleeve distributed gas phase phosgenation reactor and method for synthesizing isocyanate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4140178A (en) * | 1973-09-20 | 1979-02-20 | Atlantic Richfield Company | Liquid vapor distribution apparatus |
| SU1599137A1 (en) * | 1988-07-14 | 1990-10-15 | Комплексный научно-исследовательский и проектно-конструкторский институт обогащения твердых горючих ископаемых | Air separator |
| CN2328420Y (en) * | 1998-03-09 | 1999-07-14 | 中国成达化学工程公司 | Horizontal reaction synthesizing tower |
| CN101623615A (en) * | 2009-08-11 | 2010-01-13 | 赛鼎工程有限公司 | Sleeve distributed gas phase phosgenation reactor and method for synthesizing isocyanate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107828961A (en) * | 2017-11-02 | 2018-03-23 | 中国科学院过程工程研究所 | A kind of extracting process of rare earth element ion and obtained rare-earth enrichment liquid |
| CN107828961B (en) * | 2017-11-02 | 2024-04-05 | 中国科学院过程工程研究所 | Extraction method of rare earth element ions and obtained rare earth enrichment liquid |
| CN108939595A (en) * | 2018-07-18 | 2018-12-07 | 嘉兴学院 | The distribution device in gas-fluid of multipath diffusion |
| CN108939595B (en) * | 2018-07-18 | 2024-02-27 | 嘉兴学院 | Multi-path diffusion gas distribution device |
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| CN105170069B (en) | 2018-03-13 |
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